How many ways can four runners finish a race?
A.
10
B.
24
C.
4
D.
1
is it 10?
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OpenStudy (anonymous):
no it is not ten
OpenStudy (anonymous):
4! probably
OpenStudy (anonymous):
4 choices for first place
3 for second
2 for third
1 for last
by the counting principle the number of ways this can be done is
\[4\times 3\times 2\times 1\]
OpenStudy (pinksapphire):
The answer is B.
OpenStudy (pinksapphire):
Try the counting principle.
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OpenStudy (tkhunny):
Running
Walking
Crawling
Rolling
Wheel-Barrowing
Carried
Skipping
...
I could go on.
I do wish we had better questions in out textbooks!
OpenStudy (pinksapphire):
Is the question asking for what places the runners can finish in?
OpenStudy (tkhunny):
Assuming there are no ties and all four runners finish the race, how many different positions can there be? Please read satellite73's explanation.